How to make a kid leave me alone?

I may come across as mean but I have a 5 year old nephew that whenever he comes round mine - he literally won’t leave me alone, he follows me everywhere and wants me to play with him all the time. Out of me and my sister, he just always wants my attention.

I do play typical games that kids like to entertain him but it’s never enough, I have to pretend I’m going in the shower or something to keep him out of my room and go downstairs 😭

Any tips please

How to make a kid leave me alone?
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